Soul, Funk fans......please help!!

I'm putting together a band, and I kinda want it to be a blend of soul/funk/blues....all that good stuff. Any suggestions of some cool covers to work on at our first rehearsal? Just some fun stuff to play while we get the feel of the group.

And some other songs I like:
Hold On, I'm Coming
Pick Up the Pieces
Let's Get it On
Sexual Healing
Brick House
Take Me to the River
That's a very short list, there are so many others. Hope you have a good horn section!